No. Sorry, but that is the way it is. For all the anecdotes that are spewed out, not one of them came with any solid proof, and of course, no matter how high you stack anecdotes, they never magically transform into proof.
Evidence? Yes. Definitive proof? No.
There are many reports of alien encounters that have been made, but without any proof. Area 51 is considered to hold the secrets to human contact with aliens when they crashed in the 1950's, but this information is kept classified.
You can see documented proof of marriage from the department of vital statistics in the state the marriage took place.
Yes, proof: encounters
The Big Bang Theory - 2007 The Tangible Affection Proof 6-16 is rated/received certificates of: USA:TV-14
no
There would be no proof of anything.
There is no proof of alien life, if they exists they could have aquatic characteristics.
There is no way to know if any alien races have multiple breasts. There is no proof that alien life exists.
Since no one has proof of alien life is is hard to know if some alien races have multiple mouths.
They do. We do you think they have not gne to the moon?
There is no proof that aliens exist. If they do, it is possible that alien races could have insectile characteristics.
If you mean alien like extraterrestrial, there's no way to know. First, we have no documented proof of ET life, much less having anatomically studied one, and second, even if we had, considering the number of stars in the universe, and possible sites for ET life, there's no way we could generalize like that, at this point in time.